# Contributor: Michael Mason <ms13sp@gmail.com>
# Contributor: Gabriele Santomaggio <g.santomaggio@gmail.com>
# Contributor: Marlus Saraiva <marlus.saraiva@gmail.com>
# Contributor: Daniel Isaksen <d@duniel.no>
# Maintainer: Celeste <cielesti@protonmail.com>

# NOTE: Please do NOT upgrade to X.0 releases of Erlang, as they tend
# to have breaking changes which require the rest of the ecosystem to
# catch up with.  If in doubt, do a test rebuild of community/elixir.

pkgname=erlang
pkgver=26.2.5
pkgrel=0
pkgdesc="General-purpose programming language and runtime environment"
url="https://www.erlang.org/"
license="Apache-2.0"
arch="all"
makedepends="
	autoconf
	glu-dev
	ncurses-dev
	openssl-dev
	perl
	perl-dev
	unixodbc-dev
	wxwidgets-dev
	zlib-dev
	"
subpackages="$pkgname-dev
	$pkgname-doc
	$pkgname-debugger:_mv_erlang_lib
	$pkgname-dialyzer:_mv_erlang_lib
	$pkgname-et:_mv_erlang_lib
	$pkgname-megaco:_mv_erlang_lib
	$pkgname-observer:_mv_erlang_lib
	$pkgname-odbc:_mv_erlang_lib
	$pkgname-reltool:_mv_erlang_lib
	$pkgname-wx:_mv_erlang_lib
	"
source="https://github.com/erlang/otp/releases/download/OTP-$pkgver/otp_src_$pkgver.tar.gz"

builddir="$srcdir/otp_src_$pkgver"

# Disable Java support (jinterface) on architectures that lack OpenJDK
case "$CTARGET_ARCH" in
	x86|armhf|armv7|x86_64|aarch64|ppc64le|s390x)
		makedepends="$makedepends openjdk8"
		export PATH="/usr/lib/jvm/java-1.8-openjdk/bin:$PATH"
		;;
	*)
		;;
esac

# secfixes:
#   26.2.1-r0:
#     - CVE-2023-48795
#   25.0.3-r0:
#     - CVE-2022-37026
#   23.2.5-r0:
#     - CVE-2020-35733

build() {
	# it's a whole language runtime
	export CFLAGS="$CFLAGS -O2 -D_BSD_SOURCE"
	export CXXFLAGS="$CXXFLAGS -O2"

	./configure \
		--prefix=/usr \
		--sysconfdir=/etc \
		--mandir=/usr/share/man \
		--infodir=/usr/share/info \
		--host="$CHOST" \
		--build="$CBUILD" \
		--enable-threads \
		--enable-shared-zlib \
		--enable-ssl=dynamic-ssl-lib
	make
	make DOC_TARGETS="chunks man" docs
}

check() {
	ERL_TOP="$builddir" make release_tests
}

package() {
	make DESTDIR="$pkgdir" \
		DOC_TARGETS="chunks man" \
		install \
		install-docs

	cd "$pkgdir"

	rm -vr usr/lib/erlang/doc \
		usr/lib/erlang/COPYRIGHT \
		usr/lib/erlang/PR.template \
		usr/lib/erlang/README.md
}

_mv_erlang_lib() {
	local lib=$(echo ${subpkgname#"$pkgname-"} | tr '-' '_')
	depends="$pkgname=$pkgver-r$pkgrel"
	case "$lib" in
		debugger)	depends="$pkgname-wx=$pkgver-r$pkgrel";;
		dialyzer)	depends="$pkgname-wx=$pkgver-r$pkgrel";;
		et)		depends="$pkgname-wx=$pkgver-r$pkgrel";;
		megaco)		depends="$pkgname-debugger=$pkgver-r$pkgrel $pkgname-et=$pkgver-r$pkgrel";;
		observer)	depends="$pkgname-et=$pkgver-r$pkgrel $pkgname-wx=$pkgver-r$pkgrel";;
		reltool)	depends="$pkgname-wx=$pkgver-r$pkgrel";;
		wx)		depends="$pkgname=$pkgver-r$pkgrel xauth terminus-font";;
	esac

	mkdir -p "$subpkgdir"/usr/lib/erlang/lib
	rm -f "$pkgdir"/usr/lib/erlang/lib/$lib-*/src/*.erl
	mv "$pkgdir"/usr/lib/erlang/lib/$lib-* "$subpkgdir"/usr/lib/erlang/lib/
}

dev() {
	set -x
	local i=''
	depends="$pkgname=$pkgver-r$pkgrel $depends_dev"
	pkgdesc="$pkgdesc (development files)"

	cd "$pkgdir"
	local libdirs=usr/
	[ -d lib/ ] && libdirs="lib/ $libdirs"
	for i in usr/include usr/lib/pkgconfig usr/share/aclocal\
			usr/share/gettext usr/bin/*-config		\
			usr/share/vala/vapi usr/share/gir-[0-9]*	\
			usr/share/qt*/mkspecs				\
			usr/lib/qt*/mkspecs				\
			usr/lib/cmake					\
			$(find . -name include -type d)			\
			$(find $libdirs -name '*.[acho]'		\
			-o -name '*.prl' 2>/dev/null); do

		if [ -e "$pkgdir/$i" ] || [ -L "$pkgdir/$i" ]; then
			d="$subpkgdir/${i%/*}"  # dirname $i
			mkdir -p "$d"
			mv "$pkgdir/$i" "$d"
			rmdir "$pkgdir/${i%/*}" 2>/dev/null || true
		fi
	done

	# move *.so links needed when linking the apps to -dev packages
	for i in lib/*.so usr/lib/*.so; do
		if [ -L "$i" ]; then
			mkdir -p "$subpkgdir"/"${i%/*}"
			mv "$i" "$subpkgdir/$i"
		fi
	done
}

doc() {
	default_doc
	pkgdesc="$pkgdesc (documentation chunks and man pages)"

	amove usr/lib/erlang/*/info \
		usr/lib/erlang/lib/*/doc \
		usr/lib/erlang/lib/*/info \
		usr/lib/erlang/man
}

# helper script to manually check the dependencies of subpackages
verifydeps() {
	local _p
	for _p in $subpackages; do
		case $_p in
			*:*) _p=${_p%:*};;
			*) continue;;
		esac
		local _subdir="$pkgdir/../$_p"
		local _pkginfo="$pkgdir/../.control.$_p"/.PKGINFO
		msg "$_p"
		grep '^depend ='  $_pkginfo || true
		find "$_subdir" -name '*.app' | while read -r _f; do
			echo "  $_f"
			sed -n '/{runtime_dependencies/,/}/p' $_f
		done
	done
}

sha512sums="
70bf5f70111e33686a71a769854c6f1633d6e57b406b4d72ef9aaeb6462e429065303b511668b709ca69fa0bd3bbdbc227b4bc37c4947c271510e39fb45ee1a8  otp_src_26.2.5.tar.gz
"
